public static partial class TextTool
{
    public static string Bold(this object s)
        => $"<b>{s}</b>";
    public static string ColorText(this object s, string color)
        => $"<color={color.ToLower()}>{s}</color>";
    public static string FontSize(this object s, int size)
        => $"<size={size}>{s}</size>";
}
